20l./25l. deep blue (on Hellas 90b) 1900 Small Hermes Heads Surcharges perf. 11 1/2 in mint bl.15 (pos.36-40/46-50), surcharge error broken "T" (pos.49). Pos.46 stamp hinged, the rest u/m. Very fine and very rare. (Hellas 139k+139kD).